SIMBAD references

2026Sci...391..280L - Science, 391, 280-284 (2026/January-0)

A sudden change and recovery in the magnetic environment around a repeating fast radio burst.

LI Y., ZHANG S.B., YANG Y.P., TSAI C.W., YANG X., LAW C.J., ANNA-THOMAS R., CHEN X.L., LEE K.J., TANG Z.F., XIAO D., XU H., YANG X.L., CHEN G., FENG Y., LI D.Z., MCKINVEN R., NIU J.R., SHIN K., WANG B.J., ZHANG C.F., ZHANG Y.K., ZHOU D.J., ZHU Y.H., DAI Z.G., CHANG C.M., GENG J.J., HAN J.L., HU L., LI D., LUO R., NIU C.H., SHI D.D., SUN T.R., WU X.F., ZHU W.W., JIANG P. and ZHANG B.

Abstract (from CDS):

Fast radio bursts (FRBs) are millisecond-duration radio transients from extragalactic sources. Some repeating FRBs exhibit variations in their Faraday rotation measure (RM) due to changes in their magneto-ionic environment. We report magneto-ionic variations of FRB 20220529, a repeating FRB from a disk galaxy at redshift 0.18. For the first 17 months of observations, the RM had a median of 17 radians per square meter (rad m-2) and a scatter of 101 rad m-2. In December 2023, the RM jumped to 1977 ± 84 rad m-2, then gradually returned to typical values within 2 weeks. This sudden RM variation indicates that a dense magnetized clump of plasma passed across the line of sight. We discuss potential explanations, including a coronal mass ejection from a companion star, high plasma turbulence, or binary orbital motion.

Abstract Copyright: © 2026 American Association for the Advancement of Science. All rights reserved. AAAS is a partner of HINARI, AGORA, OARE, CHORUS, CLOCKSS, CrossRef and COUNTER.

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Simbad objects: 10

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